Peaoy 2Pcs Bike Training Wheel Heavy Duty Bicycle Stabilizer Riding Auxiliary Wheels for 18, 20, 24 In Children Bike Description： Color: Silver & black Material: Steel, plastic Single Size: Free size Package Includes: 2 x Bike training wheels 1 (pack) x Installation accessories Note: - Please note that our training wheels enclose with installation instruction in package. - Please note that some bikes like those one-armed-frame bikes and bikes that rear frame tail hook angle are much larger than others are not suitable for this training wheels. Make sure if your bike is fit or not before ordering. If you have any questions, please contact us first, we will try our best to solve it for you. - Please refer to the measurement. Tiny measuring error is allowable in normal range. - There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item. Application: Suitable for 18in / 20in / 24in child mountain bikes Cycling helper: Great item to help practice cycling. The bracket arms are strong which ensures extra stability and safety Easy installation: Just use the equipped installation accessories to install the training wheels on kids' bike, easy to use Material: Made of quality steel and plastic, durable to use Excellent stability: Adjustable height of porous position,Provides kids to gaining their balance and confidence without needing adults holding